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1142136121 = 7316951487
BaseRepresentation
bin100010000010011…
…1001110100111001
32221121010112012211
41010010321310321
54314341323441
6305155535121
740205665630
oct10404716471
92847115184
101142136121
11536784855
1227a5ba4a1
131528148b9
14ab98a517
156a40aa81
hex44139d39

1142136121 has 8 divisors (see below), whose sum is σ = 1305735680. Its totient is φ = 978645888.

The previous prime is 1142136067. The next prime is 1142136137. The reversal of 1142136121 is 1216312411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142136121 - 227 = 1007918393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142136092 and 1142136101.

It is not an unprimeable number, because it can be changed into a prime (1142134121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3561 + ... + 47926.

It is an arithmetic number, because the mean of its divisors is an integer number (163216960).

Almost surely, 21142136121 is an apocalyptic number.

It is an amenable number.

1142136121 is a deficient number, since it is larger than the sum of its proper divisors (163599559).

1142136121 is an equidigital number, since it uses as much as digits as its factorization.

1142136121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54663.

The product of its digits is 288, while the sum is 22.

The square root of 1142136121 is about 33795.5044495566. The cubic root of 1142136121 is about 1045.2960009451.

Adding to 1142136121 its reverse (1216312411), we get a palindrome (2358448532).

The spelling of 1142136121 in words is "one billion, one hundred forty-two million, one hundred thirty-six thousand, one hundred twenty-one".

Divisors: 1 7 3169 22183 51487 360409 163162303 1142136121